1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
// Copyright (C) 2013-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
namespace in_place {
static void
test ()
{
// [20.5.5] In-place construction
{
gdb::optional<int> o { gdb::in_place };
VERIFY( o );
VERIFY( *o == int() );
#ifndef GDB_OPTIONAL
static_assert( !std::is_convertible<gdb::in_place_t, gdb::optional<int>>(), "" );
#endif
}
{
gdb::optional<int> o { gdb::in_place, 42 };
VERIFY( o );
VERIFY( *o == 42 );
}
{
gdb::optional<std::vector<int>> o { gdb::in_place, 18, 4 };
VERIFY( o );
VERIFY( o->size() == 18 );
VERIFY( (*o)[17] == 4 );
}
#ifndef GDB_OPTIONAL
{
gdb::optional<std::vector<int>> o { gdb::in_place, { 18, 4 } };
VERIFY( o );
VERIFY( o->size() == 2 );
VERIFY( (*o)[0] == 18 );
}
#endif
#ifndef GDB_OPTIONAL
{
gdb::optional<std::vector<int>> o { gdb::in_place, { 18, 4 }, std::allocator<int> {} };
VERIFY( o );
VERIFY( o->size() == 2 );
VERIFY( (*o)[0] == 18 );
}
#endif
}
} // namespace in_place
|
